Answer:
y=4/9
Step-by-step explanation:
Substitute 2y into the x
2(2y)+5y=4
4y+5y=4
9y=4
y=4/9
Answer:b
Step-by-step explanation:l
Answer:
Step-by-step explanation:
The tangent equation = side opposite angle / side beside angle
which in this case is 
which is the third choice
Hope that helps!
I think it would be 315. because 4.5*70..but im not sure
Step-by-step explanation:
In the picture, I hope that it's a clear solution.